10.29.80.0/23
Private (RFC 1918) RFC 1918Class A — /23 prefix — 510 usable hosts
Network address — the base address of the block (10.29.80.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 10.29.81.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 510 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.254.0 is the dotted-decimal equivalent of /23. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 10.29.80.0/23 |
| Network Address | 10.29.80.0 |
| Broadcast Address | 10.29.81.255 |
| Subnet Mask | 255.255.254.0 |
| Wildcard Mask | 0.0.1.255 |
| Prefix Length | /23 |
| IP Address Class | Class A |
| Total IP Addresses | 512 |
| Usable Host Addresses | 510 |
| First Usable IP | 10.29.80.1 |
| Last Usable IP | 10.29.81.254 |
| Network (Hex) | 0x0A1D5000 |
| Broadcast (Hex) | 0x0A1D51FF |
| Governing RFC | RFC 1918 |
| Address Type | Private (RFC 1918) |
Binary Representation
The first 23 bits (1s in the mask) identify the network. The remaining 9 bits identify hosts within the network.
Split into Equal Subnets
Split 10.29.80.0/23 into 2 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.29.80.0/24 | 10.29.80.0 | 10.29.80.1 | 10.29.80.254 | 10.29.80.255 | 254 |
| 2 | 10.29.81.0/24 | 10.29.81.0 | 10.29.81.1 | 10.29.81.254 | 10.29.81.255 | 254 |
Split 10.29.80.0/23 into 4 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.29.80.0/25 | 10.29.80.0 | 10.29.80.1 | 10.29.80.126 | 10.29.80.127 | 126 |
| 2 | 10.29.80.128/25 | 10.29.80.128 | 10.29.80.129 | 10.29.80.254 | 10.29.80.255 | 126 |
| 3 | 10.29.81.0/25 | 10.29.81.0 | 10.29.81.1 | 10.29.81.126 | 10.29.81.127 | 126 |
| 4 | 10.29.81.128/25 | 10.29.81.128 | 10.29.81.129 | 10.29.81.254 | 10.29.81.255 | 126 |
Split 10.29.80.0/23 into 8 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.29.80.0/26 | 10.29.80.0 | 10.29.80.1 | 10.29.80.62 | 10.29.80.63 | 62 |
| 2 | 10.29.80.64/26 | 10.29.80.64 | 10.29.80.65 | 10.29.80.126 | 10.29.80.127 | 62 |
| 3 | 10.29.80.128/26 | 10.29.80.128 | 10.29.80.129 | 10.29.80.190 | 10.29.80.191 | 62 |
| 4 | 10.29.80.192/26 | 10.29.80.192 | 10.29.80.193 | 10.29.80.254 | 10.29.80.255 | 62 |
| 5 | 10.29.81.0/26 | 10.29.81.0 | 10.29.81.1 | 10.29.81.62 | 10.29.81.63 | 62 |
| 6 | 10.29.81.64/26 | 10.29.81.64 | 10.29.81.65 | 10.29.81.126 | 10.29.81.127 | 62 |
| 7 | 10.29.81.128/26 | 10.29.81.128 | 10.29.81.129 | 10.29.81.190 | 10.29.81.191 | 62 |
| 8 | 10.29.81.192/26 | 10.29.81.192 | 10.29.81.193 | 10.29.81.254 | 10.29.81.255 | 62 |
Split 10.29.80.0/23 into 16 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.29.80.0/27 | 10.29.80.0 | 10.29.80.1 | 10.29.80.30 | 10.29.80.31 | 30 |
| 2 | 10.29.80.32/27 | 10.29.80.32 | 10.29.80.33 | 10.29.80.62 | 10.29.80.63 | 30 |
| 3 | 10.29.80.64/27 | 10.29.80.64 | 10.29.80.65 | 10.29.80.94 | 10.29.80.95 | 30 |
| 4 | 10.29.80.96/27 | 10.29.80.96 | 10.29.80.97 | 10.29.80.126 | 10.29.80.127 | 30 |
| 5 | 10.29.80.128/27 | 10.29.80.128 | 10.29.80.129 | 10.29.80.158 | 10.29.80.159 | 30 |
| 6 | 10.29.80.160/27 | 10.29.80.160 | 10.29.80.161 | 10.29.80.190 | 10.29.80.191 | 30 |
| 7 | 10.29.80.192/27 | 10.29.80.192 | 10.29.80.193 | 10.29.80.222 | 10.29.80.223 | 30 |
| 8 | 10.29.80.224/27 | 10.29.80.224 | 10.29.80.225 | 10.29.80.254 | 10.29.80.255 | 30 |
| 9 | 10.29.81.0/27 | 10.29.81.0 | 10.29.81.1 | 10.29.81.30 | 10.29.81.31 | 30 |
| 10 | 10.29.81.32/27 | 10.29.81.32 | 10.29.81.33 | 10.29.81.62 | 10.29.81.63 | 30 |
| 11 | 10.29.81.64/27 | 10.29.81.64 | 10.29.81.65 | 10.29.81.94 | 10.29.81.95 | 30 |
| 12 | 10.29.81.96/27 | 10.29.81.96 | 10.29.81.97 | 10.29.81.126 | 10.29.81.127 | 30 |
| 13 | 10.29.81.128/27 | 10.29.81.128 | 10.29.81.129 | 10.29.81.158 | 10.29.81.159 | 30 |
| 14 | 10.29.81.160/27 | 10.29.81.160 | 10.29.81.161 | 10.29.81.190 | 10.29.81.191 | 30 |
| 15 | 10.29.81.192/27 | 10.29.81.192 | 10.29.81.193 | 10.29.81.222 | 10.29.81.223 | 30 |
| 16 | 10.29.81.224/27 | 10.29.81.224 | 10.29.81.225 | 10.29.81.254 | 10.29.81.255 | 30 |